For all of the bad press the "start high, finish sweet" approach gets, I've actually found it to be pretty reliable.
In general, my recipe for a sweet mead is to start right around 1.130 and use either D47 or 71B (though I suspect other 14% tolerance yeasts would work). With good nutrient and pH management this will almost always finish between 1.015 and 1.020.
This year I am doing a yeast trial with my traditional. Next up (or nearly next up) on my experiment list is to start two identical meads at 1.110 and 1.125 with D47. I will let them both finish and clear, then backsweeten the dry one to whatever FG the other one ends up at (I would predict about 1.013). Age and compare. From what I read the backsweetened one will be better, but so far I haven't seen results from such a side-by-side comparison.
In general, my recipe for a sweet mead is to start right around 1.130 and use either D47 or 71B (though I suspect other 14% tolerance yeasts would work). With good nutrient and pH management this will almost always finish between 1.015 and 1.020.
This year I am doing a yeast trial with my traditional. Next up (or nearly next up) on my experiment list is to start two identical meads at 1.110 and 1.125 with D47. I will let them both finish and clear, then backsweeten the dry one to whatever FG the other one ends up at (I would predict about 1.013). Age and compare. From what I read the backsweetened one will be better, but so far I haven't seen results from such a side-by-side comparison.